Reference 326938CSO. This luxury analog watch features an 18kt yellow gold case and bracelet, a black dial with luminous yellow gold-tone hands and indices marked by minute markers around the bezel. Dial includes date display at the 3 o'clock position. Powered by Rolex Calibre 9001 automatic movement offering up to 72 hours power reserve. Equipped with subdials for displaying multiple time zones, GMT function, hour/minute/second hands and indicators. Sapphire crystal offers scratch resistance on the black dial; screw-down crown enhances water resistance and allows adjustment while secured. Solid case back provides protection. Round case measures 42 mm in diameter. Oysterlock clasp ensures secure fastening with a waterproof depth of up to 100 meters (330 feet).